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What types of plexiglass processing plates can be selected

by:UNQ     2021-03-30
The extruded plate uses granular raw materials and is extruded after being dissolved at a high temperature. The casting plate is directly casted with MMA monomer (liquid). Although the extruded plate is relatively flat and smooth in appearance, it can be completed when the granular raw material is formed. polymerization. When processed into plates, its structure and performance are weak, and it is not suitable as a material for outdoor identification products. It is only suitable for indoor products such as crystal letters or product brackets. In addition, since most of the extruded panels do not have the function of UV protection, their outdoor use life is not the same as that of the cast panels. The color will gradually fade and it is easy to become brittle until it breaks. The casting plate is to complete the structural polymerization during the processing of the plate, during which the ultraviolet absorber is added, which has extremely high strength and UV function, and the outdoor service life is more than 5 years or even 10 years. During the use, the color is always bright as new. 1. Acrylic panels are divided into cast panels and extruded panels according to the production process. According to the transmittance, they can be divided into transparent panels, semi-transparent panels (including dyed transparent panels), and color panels (including black and white and color panels); according to performance Impact board, anti-ultraviolet board, ordinary board and special board such as high impact board, flame retardant board, frosted board, metal effect board, high wear-resistant board, light guide board, etc.  2: Casting plate: high molecular weight, excellent rigidity, strength and excellent chemical resistance. Therefore, it is more suitable for processing large-size identification plaques, and the time in the softening process is slightly longer. This kind of board is characterized by small batch processing, incomparable flexibility in terms of color system and surface texture effect, and complete product specifications, which can be used for various special purposes.

  3: Extruded plate: Compared with the cast plate, the extruded plate has a lower molecular weight, weaker mechanical properties and higher flexibility. However, this feature is conducive to bending and hot forming processing, and the softening time is shorter. When processing large-sized plates, it is beneficial to various rapid vacuum forming. At the same time, the thickness tolerance of the extruded plate is smaller than that of the cast plate. Because the extrusion plate is mass-produced automatically, the color and specifications are inconvenient to adjust, so the product specification diversity is subject to certain restrictions.  4. There is also a kind of recycled acrylic sheet, which uses recycled acrylic scrap, which is thermally degraded to obtain recycled MMA (methyl methacrylate) monomer, which is then obtained by chemical polymerization. After a rigorous process, pure MMA monomers can be re-obtained, and there is no difference in quality from newly synthesized monomers. However, the purity of the produced degradable monomers is not high, and the quality and performance of the sheet are very poor after the sheet is formed.   The service life is more than 5 years or even 10 years, and the color is always bright as new during the period of use.

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